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131988652 = 22295711159
BaseRepresentation
bin1111101110111…
…11110010101100
3100012100201101121
413313133302230
5232242114102
621032550324
73161612365
oct767376254
9305321347
10131988652
1168560034
12382523a4
13214639c3
141375ab6c
15b8c2b37
hex7ddfcac

131988652 has 12 divisors (see below), whose sum is σ = 231078960. Its totient is φ = 65966096.

The previous prime is 131988641. The next prime is 131988707. The reversal of 131988652 is 256889131.

It is a junction number, because it is equal to n+sod(n) for n = 131988599 and 131988608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6249 + ... + 17407.

It is an arithmetic number, because the mean of its divisors is an integer number (19256580).

Almost surely, 2131988652 is an apocalyptic number.

It is an amenable number.

131988652 is a deficient number, since it is larger than the sum of its proper divisors (99090308).

131988652 is a wasteful number, since it uses less digits than its factorization.

131988652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14120 (or 14118 counting only the distinct ones).

The product of its digits is 103680, while the sum is 43.

The square root of 131988652 is about 11488.6314241514. The cubic root of 131988652 is about 509.1497456466.

The spelling of 131988652 in words is "one hundred thirty-one million, nine hundred eighty-eight thousand, six hundred fifty-two".

Divisors: 1 2 4 2957 5914 11159 11828 22318 44636 32997163 65994326 131988652